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Finding the Fourth Proportional to 121,660.32, 167,652 and 93,012.33

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Solution

The fourth proportional to 121,660.32, 167,652 and 93,012.33 is: 128,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,660.32 : 167,652 = 93,012.33 : x
  2. Step 2: Convert to fraction form
    121,660.32/167,652 = 93,012.33/x
  3. Step 3: Cross multiply
    121,660.32x = 167,652 × 93,012.33
  4. Step 4: Simplify right side
    121,660.32x = 15,593,703,149.16
  5. Step 5: Solve for x
    x = 15,593,703,149.16/121,660.32
  6. Step 6: Final answer
    x = 128,174.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.